Thermostat casing



FIG. 1 is a top plan view of a thermostat casing showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a cross-sectional view thereof as taken from line 7--7 of FIG. 2; and

FIG. 8 is a cross-sectional view thereof as taken from line 8--8 of FIG. 2. 

The ornamental design for a thermostat casing, substantially as shown. 